Explosion rotating engine



June 19, 1923.

L. l. POIRMEUR EXPLOSION ROTATING ENGINE Filed Feb. 13 1920- 4Sheets-Sheet 1 Jamm ' June 19, 1923.

1,458,950 l. POIRMEUR EXPLOSION ROTATING ENGINE Filed Feb. 15, 1920 4SheetsSheet 2 June 19, 1923.

L. I. POIRMEUR EXPLOSION ROTATING ENGINE Filed Feb. 13, 1920 4Sheets-Sheet 5 x Aw JMOWM June 1-9, 1923.

L. l. POIRMEUR EXPLOSION ROTATING ENGINE Filed Feb. 13 1920 4Sheets-Sheet 4' Patented June 19, 1923 UNITE EXPLOSION ROTATING ENGINE.

Application filed February 13, 1920. Serial No. 358,427.

To all whom it may concern:

Be it known that Lorne ILDEvnn'r Pom- HEUR, citizen of the FrenchRepublic, residing at' Meru, Oise, France, has invented certain new anduseful Improvements in Explosion Rotating Engines, of which thefollowing is a specification.

This invention relates to improvements in rotary explosion engines, andthe object of the invention is to make a simple rotary engine driven bythe explosion of vapor charged air and one that will be inexpensive tobuild, very light, and efficient in operation.

Another object of this invention is to provide an engine of the abovetype in which the parts are relatively few and simple and whoseoperation is very easily understood and controlled.

Another object of this invention is to provide such an engine that iscompact in structure, readily and easily installed and effective andreliable under almost any condition of o ration. Other ob ects will beobvious from the following escription, taken in connection with thedrawing, which forms part of the specification.

In the accompanying drawings:

Fig. 1 is a vertical section through the rotating engine on the line ofthe drive shaft.

Fig. 2 is a section on the line A, B, C, D, E, F, Fig. 1.

Fi 3 is a section .on the line A, B, G,

H L F, Fig. 1.

Fig. 4 is a detail showing pawls and pawl slots associated with disk 12.

Fig. 5 is a view of the parts shown in Fig. 4, looking at ri htanglethereto.

ig. 6 is a detail 5 owing the pawls and pawl slots associated. with thecylinder cas- Fig. 7 is a view of the arts shown in Fi 6, lookingatright ang e thereto.

Fig. 8 is a perspective view of one of the p The engine is provided witha circular composed of parts 1- and- 2 bolted '50 toget or by means ofbolts 3. 'ILhese parts thus fastened together forma circular annularcavity or space 4 constituting the cylinder of the engine. Passinthrough the center of the casing in openings provided therefor is arotating shaft 5. Between the shaft andthe bearing walls of the casingare interposed ball bearing anti-friction means 6 and 7, and betweenshoulders on.

32. The disk 23 is permanently attached tothe inside wall of section 2and is provided with cam rooves 20, 21 and 22, shown more clearly in ig.2. The disk 32 is provided with radial grooves 31, as shown in Fig. 6.The disk 12 is permanently attached to the shaft 5 and rotates betweenthe disks 23 and 32. On the face of disk 12, adjacent to disk 23 thereis provided a series of radial grooves 17 in w ich are located pawls 18,

as shown in Fig. 4. Each of the pawls 18 has a projection 19 fittinginto one of the cam grooves in disk 23. On the face of disk 12 adjacentto disk32 is series of cam slots, as shown in ig. 3. In

each of the radial grooves 31 of disk32 is located a pawl 30. This pawl30 is pro vided with a projection 29 which engages one of the cam slotson the face of the disk 12. Within the annular groovecylinder 4 arelocated a plurality of disk pistons 13, 14, 15 and 16 which are ada tedto move with in the said cylinder. ach of these pis: tons is providedwith a socket 25 adapted to be engaged by the pawls 18 and 30. The

engagement of these pawls 18 and 30 with.

the sockets 25 is determined by the cam slot on the disk 23 and the disk12. .The cam slots in the disk 23 and the disk 12 are so arranged inrelation to the pawls thereon as to control and'properl time the engage.ment of the pawls wlth. t e pistons. It will be readilyseen thatwhenever any pawl 30 rovided a a socket the corresponding .piston' on isin fixed. relation to the cas n. It

will also be noted that when any pawl 18 engages a socket 25 thecorresponding piston will be rotatively attached to the disk 12 andthereby to the shaft 5. For the pur pose of admitting fuel into theCylinder 4 is an admission pipe 33 connected with a suitable carburetor.There is also connected to the cylinder an exhaust pipe 34 and a sparkplug 36.

For an understanding of the operation of this device attention is calledto Figs. 2 and 3. As shown in Fig. 2, the pistons 14 and 16 are movablewith the shaft 5 due to the engagement of the pawls 18 in the socket 25,while the pistons 13 and 15 are held fixed in relation to the cylinderby means of pawls 30 and socket 25. These pawls 30 as previouslymentioned move in slots in the disk 32 permanently secured to section 1of the casing. In the position of the parts shown in these figures thecylinder between the pistons 14- and 15 is filled with an explosivemixture which is undergoing compression due to the rotation of thepiston 14 within the cylinder. As this piston .14; advances due to theexplosion which has taken place in the fuel previously compressedbetween pistons 15 and 16, fuel is taken in through the feed pipe 33between pistons 13 and 14, at the same time the fuel that has beenpreviously used by explosion is being exhausted from between the pistons16 and 13 out through the exhaust pipe 34. As the pistons 14 and 16rotate due to explosion, the piston 1 will assume a position about wherepiston 15 is in the drawing. Just before the piston 14 reaches thepresent position of piston 15 the pawl 30 is released from the socket 25of piston 15 and one of the pawls 18 engages said socket due to themotion of the pawl projection in the slot 22, whereby the piston 15 ismoved to a position about where the piston 16 now is, after which thepistonls assumes the position of piston 15 in Fig. 3 and is locked inthat position by one of the pawls 30. At the time this relativelychanged position is taking place between pistons 14 and 15, piston 13has been moved to the position of is and the piston 16 has moved to thepresent position of the piston 13. These changes are regu lated by theengagement of the pawls 18 and 30 with the socket 25 and such engagementis determined by the particular shape and location of the different camslots in which the pins of the pawis engage. Fr an observation of theshape of these siot it can be readily seen that the engagement any ofthe paivls with the socket m pends upon what part of the siot t at anytime iocat-ed. justing Applicant does not wish to be limited to thespecific embodiment of his invention as here illustrated, which may beconsidered only as a preferred form, but only wishes to be limited bythe scope of the appended claims.

What I claim is 1. Inan explosive engine, a casing having an annularcylinder and a central cavity pistons within the cylinder, a shaftextending through said casing and through said cavity, a disk secured tosaid shaft and adapted to rotate within said cavity, means associatedwith one face of said disk to lock the pistons in engagement with thecasing, means associated with the other face of said disk to lock thepistons in engagement with the disk whereby on rotation of the pistonsthe shaft will rotate.

2. In an explosive engine, a circular casing having an annular cylinderand a central cavity, said casing being provided at its center with ashaft opening, a shaft rotatably mounted in said shaft opening, a diskupon said shaft and rotatable in said cavity, said disk being providedon one face with radial slots, pawls slidably mounted in said radialslots, projections upon said pawls, cam means for engaging saidprojections to move said pawls into or out of engagement with thepistons, said disk being provided on its other face with cam slots,pawls mounted in the casing adjacent said disk and adapted to engage thepistons, projections on said pawls and engaging the cam slots of thedisk, whereby said last-named pawls may be thrown into or out ofengagement with the pistons.

3. In an explosive engine, a casing hlaving an annular cylinder and acentral cavity, one wall of said cavity being providm with cam slots andthe other wall of said cavity being provided with radial slots, pawlsmounted in said radial slots, projections on said pawls, said casinghaving centrally thereof a shaft bearing, a rotating shaft rotatabiymounted in said bearing, a

disk upon said shaft and rotating in said cavity, one face of said diskhaving radial slots, paw-ls mounted in said radial slots, projections onsaid pawls and engaging said cam slots, the other face of said diskhaving cam slots adapted to be engaged by the projections on the pawlsmounted in the radial slots of the casing, whereby upon rotation of thethe pawls may be thrown into or out of engage. with the pistons. in anexplo engine, a casing having a cylinder and central cavity, pistons inthe cylinder, 5 ft extending through said casing and r a disk secured tothe shaft and rota lthin the cavity, radiaiiy moved me sociated with oneface a e. d to lock the pistons oasmg, a

dially moving means associated with the other face of the disk andadapted to lock the pistons in engagement with the disk.

5. In an explosive engine, a casing having a cylinder and a centralcavity, pistons in the cylinder, a shaft extending through said casingand cavity, a disk secured to the shaft and rotating within the cavity,radially moving means associated with the wallsof the cavity for lockingthe istons in engagement with the casing, an a. second radially movingmeans associated with another faoe of the cavity to lock the pistons

